Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 35, NWS Green Bay, WI

June 24, 2021Portage County, Wood County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Jun 24, 2021, 6:23 PM CDT for Portage County, Wood County, Wisconsin. It was in force for 52 min. 4 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 24, 2021, 6:23 PM CDT (23:23 UTC)
Expired: Jun 24, 2021, 7:15 PM CDT
In force: 52 min
Issued by: NWS Green Bay, WI
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

Counties Portage County, WI, Wood County, WI

The radar

The Green Bay radar (KGRB), 124 km from the middle of the area, began a volume at 23:23 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Jun 24, 6:29 PM CDT	HAIL 0.88	Wisconsin Rapids, WI
Jun 24, 6:30 PM CDT	HAIL 1.75	1 Nnw Stevens Point, WI	REPORT FROM MPING: GOLF BALL (1.75 IN.).
Jun 24, 6:31 PM CDT	HAIL 1.75	Stevens Point, WI
Jun 24, 6:42 PM CDT	HAIL 1.25	Plover, WI	ALSO MEASURED 32 MPH WINDS.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 11.4 hours before the alert went out and 314 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 389 J/kg
Mixed-layer CIN: -353 J/kg
Mixed-layer LCL: 1072 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 166 m²/s²
0-3 km storm-relative helicity: 167 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

As transmitted.

858 
WUUS53 KGRB 242323
SVRGRB
WIC097-141-250015-
/O.NEW.KGRB.SV.W.0035.210624T2323Z-210625T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Green Bay WI
623 PM CDT Thu Jun 24 2021

The National Weather Service in Green Bay has issued a

* Severe Thunderstorm Warning for...
  Southeastern Wood County in central Wisconsin...
  Portage County in central Wisconsin...

* Until 715 PM CDT.

* At 623 PM CDT, a severe thunderstorm was located near Lake
  Wazeecha, or near Wisconsin Rapids, moving east at 40 mph.

  HAZARD...Ping pong ball size hail and 60 mph wind gusts.

  SOURCE...Trained weather spotters.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees.

* Locations impacted include...
  Stevens Point, Wisconsin Rapids, Whiting, Amherst, Lake Wazeecha,
  Plover, Stockton, Nekoosa, Port Edwards and Biron.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move immediately to shelter inside a strong building. Stay
away from windows.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4425 9001 4458 8988 4457 8922 4424 8923
TIME...MOT...LOC 2323Z 276DEG 36KT 4446 8974 

HAIL...1.50IN
WIND...60MPH
 
$$

Hykin

2 follow-up statements

295 
WWUS53 KGRB 242334
SVSGRB

Severe Weather Statement
National Weather Service Green Bay WI
634 PM CDT Thu Jun 24 2021

WIC097-141-250015-
/O.CON.KGRB.SV.W.0035.000000T0000Z-210625T0015Z/
Wood WI-Portage WI-
634 PM CDT Thu Jun 24 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR SOUTHEASTERN WOOD AND PORTAGE COUNTIES...

At 634 PM CDT, a severe thunderstorm was located near Whiting, or
near Stevens Point, moving east at 40 mph.

HAZARD...Golf ball size hail and 60 mph wind gusts.

SOURCE...Trained weather spotters.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

Locations impacted include...
Stevens Point, Wisconsin Rapids, Whiting, Amherst, Lake Wazeecha,
Plover, Stockton, Nekoosa, Port Edwards and Biron.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4425 9001 4458 8975 4457 8922 4424 8923
TIME...MOT...LOC 2334Z 276DEG 36KT 4445 8959 

HAIL...1.75IN
WIND...60MPH
 
$$

Hykin

139 
WWUS53 KGRB 242353
SVSGRB

Severe Weather Statement
National Weather Service Green Bay WI
653 PM CDT Thu Jun 24 2021

WIC097-141-250015-
/O.CON.KGRB.SV.W.0035.000000T0000Z-210625T0015Z/
Wood WI-Portage WI-
653 PM CDT Thu Jun 24 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR SOUTHEASTERN WOOD AND PORTAGE COUNTIES...

At 651 PM CDT, a severe thunderstorm was located near Amherst, or 12 
miles southeast of Stevens Point, moving east at 40 mph. At 642 PM 
CDT, a trained weather spotter reported half dollar size hail in 
Plover.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Trained weather spotters.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Stevens Point, Wisconsin Rapids, Whiting, Amherst, Lake Wazeecha,
Plover, Stockton, Port Edwards, Jordan and Park Ridge.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4425 8993 4458 8954 4457 8922 4424 8923
TIME...MOT...LOC 2351Z 276DEG 36KT 4443 8934 

HAIL...1.25IN
WIND...60MPH
 
$$

Hykin

The office that day

Everything else NWS Green Bay, WI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 24, 5:24 AM CDT	Special Weather Statement	GRB	Lincoln	51 min
Jun 24, 6:17 AM CDT	Special Weather Statement	GRB	Forest, Langlade, Marathon, Oneida	58 min
Jun 24, 6:56 AM CDT	Special Weather Statement	GRB	Portage	64 min
Jun 24, 7:27 AM CDT	Special Weather Statement	GRB	Brown, Kewaunee, Outagamie, Portage, Shawano, Waupaca and 1 more	63 min
Jun 24, 7:39 AM CDT	Severe Thunderstorm Warning	GRB	Calumet, Outagamie, Portage, Waupaca, Waushara, Winnebago and 1 more	41 min
Jun 24, 8:25 AM CDT	Special Weather Statement	GRB	Calumet, Manitowoc, Waushara, Winnebago	50 min
Jun 24, 1:16 PM CDT	Special Weather Statement	GRB	Door, Oconto	59 min
Jun 24, 3:11 PM CDT	Special Weather Statement	GRB	Kewaunee	49 min
Jun 24, 3:55 PM CDT	Special Weather Statement	GRB	Kewaunee	50 min
Jun 24, 4:29 PM CDT	Special Weather Statement	GRB	Marathon	61 min
Jun 24, 5:20 PM CDT	Special Weather Statement	GRB	Wood	55 min
Jun 24, 5:52 PM CDT	Severe Thunderstorm Warning	GRB	Portage, Wood	38 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2021 Every severe thunderstorm warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.